Having seen this tool on Web, I decided to make one (two).
I used "welding wire" in stainless steel of 1 mm :
This faith I folded everything directly in front of the screen of my PC :
I used ice cream sticks and rounded the edges :
Then I glued the whole together (not only the wood but also my fingers)
I used "heatshrink tubing" for finishing, I made 2 of these tools, one as see on the web and a finer one.
I must again test them, but this will not be before Christmas I think.....